van der Linden W, Gedda S, Edlund G
Surg Gynecol Obstet. 1981 Jun;152(6):829-30.
Sump drainage was compared with closed static drainage in a randomized trial using a restricted sequential plan. Sump drains were converted into static drains by closing the air-vent tubes and by omitting suction. Sump drains so converted evacuated more intraperitoneal fluid during the first 24 hours after cholecystectomy than did drains in which the sump was functioning. For drainage after cholecystectomy, the sump drain is inferior to the passive drain in a closed circuit.
在一项采用受限序贯设计的随机试验中，对负压引流与封闭式静态引流进行了比较。通过关闭排气管和停止吸引，将负压引流管转换为静态引流管。与仍在发挥负压作用的引流管相比，这种转换后的负压引流管在胆囊切除术后的头24小时内排出的腹腔内液体更多。对于胆囊切除术后的引流，在闭合回路中，负压引流管不如被动引流管。
